isin_validate
ISIN check digit (ISO 6166). Two letters, nine letters or digits, one check digit. Letters expand to their alphabet position (A = 10) and the Luhn sum of that digit string must be 0. The prefix must be an ISO country code or one of the substitute prefixes EU, QS, QT, XA, XB, XC, XD, XF, XK, XS. S...
This record as markdown: /tools/com-it-scorptech-x402/isin-validate.md
What isin_validate does on ScorpTech x402 API
AI agents call isin_validate to retrieve information from ScorpTech x402 API without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
value | string | Yes |
Parameters from the server's own tool schema.
Why isin_validate is rated Low
Even though isin_validate only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs isin_validate safely
PolicyLayer is an MCP gateway: it sits between your AI agents and ScorpTech x402 API, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For isin_validate, this is the rule to start with:
isin_validate is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect ScorpTech x402 API, apply this rule, and every isin_validate call is checked against it from then on.
Questions about isin_validate
ISIN check digit (ISO 6166). Two letters, nine letters or digits, one check digit. Letters expand to their alphabet position (A = 10) and the Luhn sum of that digit string must be 0. The prefix must be an ISO country code or one of the substitute prefixes EU, QS, QT, XA, XB, XC, XD, XF, XK, XS. Spaces are ignored. The national security id inside is not looked up. Price: $0.001 USDC per successful call (x402, Solana). Same tool over HTTPS: GET https://scorptech.it.com/api/x402/v1/isin-validate. It is categorised as a Read tool in the ScorpTech x402 API MCP Server, which means it retrieves data without modifying state.
isin_validate accepts 1 parameter: value. Required: value. The full parameter table on this page comes from the server's own tool schema.
Register the ScorpTech x402 API MCP server in PolicyLayer and add a rule for isin_validate: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches ScorpTech x402 API. Nothing to install.
isin_validate is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the isin_validate rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for isin_validate. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
isin_validate is provided by the ScorpTech x402 API MCP server (https://scorptech.it.com/api/x402/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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